23-06-13, 04:44 PM
Try checking all your engine bolts... that seems like the most useful thing to me.
With mine, I would estimate that after getting it back from the shop, the vibration has reduced by about 50%+ at the worst times (normally after over an hour of riding). Also, if the chain is too tight, it could make things feel crappy because it loads the front gear with a pulling force against the shaft and of course reduce the chain life drastically.
My theory is that 6-8K revs is just the resonant frequency of the engine, where everything just starts to thrum at it's natural vibrating frequency. It's the same thing as when you sit on an old diesel bus and it wants to shake itself to pieces when it's ticking over at the traffic lights. In that case, the bus engine tick over frequency matches the resonant frequency of the bodywork and frame of the bus... and voila you are suddenly sat inside a threshing machine.
On a side note, I dropped a K&N air filter in mine when I got it back and I can't honestly say if it feels more powerful, but it definitely doesn't feel less powerful and I have a lifetime air filter and got to whack a sticker on the bike and one on my helmet to cover a little bit of damage from when I dropped the helmet from handlebar height to the floor.
it's good enough for now!
With mine, I would estimate that after getting it back from the shop, the vibration has reduced by about 50%+ at the worst times (normally after over an hour of riding). Also, if the chain is too tight, it could make things feel crappy because it loads the front gear with a pulling force against the shaft and of course reduce the chain life drastically.
My theory is that 6-8K revs is just the resonant frequency of the engine, where everything just starts to thrum at it's natural vibrating frequency. It's the same thing as when you sit on an old diesel bus and it wants to shake itself to pieces when it's ticking over at the traffic lights. In that case, the bus engine tick over frequency matches the resonant frequency of the bodywork and frame of the bus... and voila you are suddenly sat inside a threshing machine.
On a side note, I dropped a K&N air filter in mine when I got it back and I can't honestly say if it feels more powerful, but it definitely doesn't feel less powerful and I have a lifetime air filter and got to whack a sticker on the bike and one on my helmet to cover a little bit of damage from when I dropped the helmet from handlebar height to the floor.
it's good enough for now!
Smokey this is not 'Nam, this is bowling, there are rules!